Home▸ Forums▸ 68kMLA▸ Mac Plus and External SCSI — #14
Post #14 by porter
Source Forum68kMLA
CategoryPeripherals
Post DateMon, 2 Nov 2009 - 20:29
Original URLhttps://68kmla.org/bb/threads/mac-plus-and-external-scsi.18659/
Post
The Mac II onwards were designed to use NuBus bus mastering for high speed data transfers. Both devices had to be on the NuBus, of course, and support bus mastering, at least as a slave. Possibly safer in a world of dodgy C programmers than DMA read/writes? Definitely more secure
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Surely bus mastering is about allowing the DMA controller to be on the card rather than on the motherboard. I have no idea what "dodgy C programmers" has to do with anything.

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